if (!redisConfig.isAllowMultipleLogin()) {

                 String storedToken = redisTemplate.opsForValue().get("jwt:" + userId);

                 if (storedToken == null) {

                 } else if (!storedToken.equals(accessToken)) {

                     response.setContentType(MediaType.APPLICATION_JSON_VALUE);

                     response.setStatus(HttpStatus.UNAUTHORIZED.value());

 <?xml version="1.0" encoding="UTF-8"?>

 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

 <!--

     작성일 : 2025.03.22

     내 용 : 중복로그인 관련

 -->

 <mapper namespace="com.takensoft.cms.logionPolicy.dao.LogionPolicyDAO">

     <select id="selectLatestPolicy" resultType="boolean">

         SELECT allow_multiple_login

         FROM login_policy_history

         LIMIT 1

     </select>

     <insert id="insertPolicy" parameterType="LoginPolicyVO">

         INSERT INTO login_policy_history (

             allow_multiple_login,

             updated_at

         )

         VALUES (

             #{allowMultipleLogin},

             NOW()

         )

     </insert>